• DocumentCode
    3791449
  • Title

    Three-level buck converter for envelope tracking applications

  • Author

    V. Yousefzadeh;E. Alarcon;D. Maksimovic

  • Author_Institution
    Electrial & Comput. Eng. Dept., Univ. of Colorado, Boulder, CO, USA
  • Volume
    21
  • Issue
    2
  • fYear
    2006
  • Firstpage
    549
  • Lastpage
    552
  • Abstract
    This letter proposes a three-level buck converter for tracking applications such as envelope-tracking in radio frequency power amplifiers (RFPAs). It is shown that the three-level buck converter can offer advantages in terms of switching ripples, losses, bandwidth, or the size of magnetic components compared to a standard buck or a two-phase buck converter. Experimental results illustrate improved efficiency and ripple rejection in an RFPA envelope-tracking application representative for low-power battery-operated systems.
  • Keywords
    "Buck converters","Pulse width modulation converters","Switching converters","Radio frequency","Voltage","Switching frequency","Power amplifiers","Radiofrequency amplifiers","Bandwidth","Pulse width modulation"
  • Journal_Title
    IEEE Transactions on Power Electronics
  • Publisher
    ieee
  • ISSN
    0885-8993
  • Type

    jour

  • DOI
    10.1109/TPEL.2005.869728
  • Filename
    1603688
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3791449